Brick-press



UNITED sTATEs PATENT onirica.

JAMES DANE, OF WEST DERBY, VERMONT.

BRICK-PRESS.

Specification of Letters Patent Nd. *5,878, dated October 24, 18.48.

To all whom t may concern.' i

Be it known that I, JAMES DANE, of' West Derby, in the county of Orleans and State of Vermont, have'invented a new and useful Improvement in Machines for Making Brick, which is described as follows, reference being had to the annexed drawings of the same, making part of this specification.

Figure l is a perspectiveview of themachine showing the lower carriage P eX- tended from the left side thereof, the filled; molds being removed and discharged and a set of 'empty molds put in their places-the upper carriage P with a set of molds drawn in beneath the'charging box G. Aof the right side of the machine and the follower K, in. the act of pressing the clay into the molds, the sweep E to which the horses are attached being represented as partly broken ofl'. Fig.

'2 is a view of the machine turned bottom` upward showing the 'four parallel rods r attached to, and combined with, the carriages, there being two parallel rods to each carriage arranged in pairs at right angles. I n this View the bridge-tree T is omitted in order to show the crank shaft Q. Fig. 3 is a section showing the apparatus for lifting and discharging the molds, and the valve block O beneath the grating H for preventing the descent of the clay from the receiver, G; also a part of the mixing tub B, frame A, carriages P, P mold I and followers or piston K. Likewise the crank Q, and arm R for moving the carriages and the axleQ resting on the bridge-tree T.

Similar letters in the several figures-refer to corresponding parts.

The main bodyof this machineis made and arranged much after the manner ofthe old combined mixing tub and sliding mold machine which has been'long in use in the State of Maine and elsewhere. Namely the frame A, the hopper or tub Bin whichithe clay is mixed beforepassing into Lthefmolds, the vertical shaft C of radial mixing or pulverizing knives Dy working in the tub, the sweep E to which the animal, or'animals are attached for operating the knives and pressing the clay into the molds, the openings -F in the sides of the tub through which the clay, when mixed, is forced into the mold by the action oft-he lever knives D, the receiver Gr into which the clay is forced from the tub B, and in. which the followers work, resting upon the grating or stationary molds H, th'e sliding molds I, the followers or pistons K piston rods M attached toy the frames L, the i levers or treadles N bearingupon the heads of the piston rods, theslidingvalves or blocks 0- attached to the carriagesy for passing under run out on ways from the several sides of the machine 1n succession in order to discharge the pressed bricks, and again to runv by the rotary motion of a crank Q geared )to the vertical.v shaft C of the grinding ma"- chine; the manner of gearing being effectedby means. of an arm R (on which there is a cog or wrist S) attached permanently tothe 4lower end of said shaft C below the mixing tubs and turning with said shaft C, the said crank Q operating` to move the carriages'alyternately by coming in Contact wieh fourl parallel rods r crossed at right angles and yattached to the carriages; and the said arm R andV crank Qbeing disconnected whenever it is desired tov stop the motion of the c arA havingiron grooved ribs g on the under side thereof made to move over, or running J said ways-J being adjusted by common set screws or wedges in `order -to make the mold work close up against the under side carriage being arranged below the other and molds I of the usual form.

Combined with the grating or underside of the false molds H is a movable striker-V for striking t-he brick, said striker being held ,the-grating when the4 filled molds I are- 1carrying several sets of moldsI, are made to t them in successively to fill the empty moldsv at right angles thereto, and carrying sets ofv working in the receivers G, the framesl L and riages and to usefthegrinding machine alone c of the shaft` c enters; the carriages P P i n on wheels f, whose axles are let into the ways of the grating yor stationary molds PI, one

carriage being stationary during a quarter revolution of the crank; the lever or treadle d Fig. 3 on the first named side of the machine is then pressed down, which turns the cam shaped roller b, raises the curved springs a, and with it the filled molds I, and at the same time brings the upper end of the curved discharging levers c in contact with the bot-tom of the molds I causing the molds to be lifted and delivered vinto the hands of the off-bearers.

The crank having revolved another quarter of a circle comes in contact with one of the parallel rods r of the carriage P crossing the first named carriage P at right angles and operates it in the same manner, while the roller E of the sweep E acts upon thek next lever N of the piston K in succession,v

forcing the clay from its receiver Gr, through the grating H into the second set of molds of the first named carriage P which remain stationary during this operationthe crank moving through the space between the rods a, 1' (Fig. 2) without touching them. In this manner the operation is continuedthere being always a set of filled molds leaving the grating on one side of the machine while a set of empty molds are approaching it on the opposite side and at the same time a follower on another side is performing its office of pressing the clay into the molds on that side. The machine will require an offbearer to each set of molds. This operation will be better understood by describing the successive motions of the carriages during one revolution of the crank. Now, suppose the crank to start from. N. l, on the dotted circle; the first quarter revolution from l to 2, will cause the carriage P with its two sets of molds to move one set in and the other out-The next quarter revolution from 2 to 3, will move carriage P with its two sets of molds, in the same manner-carriage P re-l` maining stationary. The third quarter revolution from 3 to 4; will move carriage P back t-o the position it had at the commencement of the revolution. The fourth quarter revolution of the crank will return the carriage P to its position on starting at No. l.

From the foregoing it will be clearly seen that each carriage will be stationary at every quarter revolution of the crank and while the crank is moving through thespace between the parallel rods of the said stationary carriage. By these alternate stoppages in the motion of the carriages time is allowed to take up the filled molds and put on a set of empty molds at each end of each carriage after it is brought out from under the grating-and this operation is effected without connecting the cranks to the carriages and without the use of a cam being done by the simple arrangement of 'the parallel rods r and causing the crank Q, to strike against them.

I do not claim the invention of t-he crank or carriages nor giving the carriages a reciprocating action, but

What I do claim as my invention and desire t0 secure by Letters Patent, is-

The mode of discharging the filled molds by means of a combined spring lever a-cam shaft b-curved discharging arm C and treadles d, arranged and operating in the manner and for the purpose above set forth.

In testimony whereof I have hereunto subscribed my mane before two subscribing witnesses this 24th day of May, 1847.

JAMES DANE.` Witnesses:

WM. P. ELLIOT, A. E. H. JoHNsoN. 

